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QUICK FUEL TECHNOLOGY®

Installation Instructions

HOT ROD SERIES CARBURETORS

SLAYER SERIES CARBURETORS

SUPER STREET SERIES CARBURETORS

  HR-580-VS  580 CFM Vac. Secondary   

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SS-680-VS  680 CFM Vac. Secondary

 HR-680-VS  680 CFM Vac. Secondary   

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SS-735-VS  735 CFM Vac. Secondary

 HR-780-VS  780 CFM Vac. Secondary   

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SS-780-VS  780 CFM Vac. Secondary

 HR-600  600 CFM Mech. Secondary      

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 SS-880-VS  880 CFM Vac. Secondary   

 HR-650  650 CFM Mech. Secondary      

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 SS-650  650 CFM Mech. Secondary

 HR-750  750 CFM Mech. Secondary      

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 SS-750  750 CFM Mech. Secondary

 HR-850  850 CFM Mech. Secondary      

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 SS-650-AN  650 CFM Mech.Secondary

 SS-650-E85  650 CFM Mech. Sec.         

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 SS-750-AN 750 CFM Mech. Secondary

 SS-750-E85  750 CFM Mech. Sec.         

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 SS-830  830 CFM Mech. Secondary

 SS-850  850 CFM Mech. Secondary       

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 SL-600-VS 600 CFM Vac. Secondary

SL-750-VS 750 CFM Vacuum Secondary

Please Stop and Read these Instructions before proceeding. If you do not fully 

understand the installation and tuning instructions you should seek professional 

help. Failure to follow the proper installation and tuning may result in damage or 

injury.

Quick Fuel Technology®

129 Dishman Lane

Bowling Green, KY 42101

270-

781-9741

www.quickfueltechnology.com

Summary of Contents for HOT ROD SERIES

Page 1: ...Secondary SS 750 750 CFM Mech Secondary HR 850 850 CFM Mech Secondary SS 650 AN 650 CFM Mech Secondary SS 650 E85 650 CFM Mech Sec SS 750 AN 750 CFM Mech Secondary SS 750 E85 750 CFM Mech Sec SS 830 830 CFM Mech Secondary SS 850 850 CFM Mech Secondary SL 600 VS 600 CFM Vac Secondary SL 750 VS 750 CFM Vacuum Secondary Please Stop and Read these Instructions before proceeding If you do not fully und...

Page 2: ...ntake manifold 8 Cover intake manifold carburetor flange with a clean rag or towel to prevent any foreign objects from falling into the engine Installation of New Carburetor 1 Set old carburetor and new carburetor side by side on work bench 2 Examine linkage connection throttle cable rod and kickdown cable if applicable transfer to new carburetor in same location if possible 3 Install flange gaske...

Page 3: ...does not drop below 12 6 volts Some engines use a field wire from the alternator that only produces 9 5 volts which does not allow the choke to operate properly Starting the Engine 1 Reattach the negative battery cable 2 You are now ready to start the engine 3 Before attempting to start the fuel bowls need to be filled with fuel Whether you have an electric fuel pump or a mechanical pump it is nec...

Page 4: ...e is too lean and the mixture screws will need to be backed out to the highest vacuum or RPM 11 Turning the mixture screws in clockwise leans the mixture turning the mixture screws out counter clockwise richens the mixture 12 After you have attained the highest manifold vacuum or best idle quality with an automatic transmission apply the brake then shift the transmission into gear This will create...

Page 5: ...st access is at wide open throttle with the engine off Ordinarily a good fast idle speed is approximately 1 600 RPM with the engine at normal operating temperature The correct procedure to check the fast idle is to manually open the throttle close the choke plate with your finger release the throttle lever then release the choke plate This sets the fast idle cam Start the engine without touching t...

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